System of obtaining power from volatile liquids.



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SYSTEM OF OBTAINING POWER FROM VOLATILE LIQUIDS.

SPECFCATION forming part 0f Letters Patent N0. 695,859, dated. March.18, 1902.

Application iileli September SO. 1901. Serial No. 77,04%. (No model.)

To @ZZ whom t may concern,.-

Be it known that we, JULIUS BRUUN and PAUL STRICKER, subjects of theKing of Denmark, and residents of Copenhagen, in the Kingdom ofDenmark,have invented a certain new and useful System of Obtaining Powerfrom Volatile Liquids, of which the following is a specification and theaccompanying drawing an illustration.

Vhen using steam in steam-engines, it is necessary in order to evaporatethe water to supply this with the latent heat which leaves with theexhaust-steam or is extracted by cooling-water in the condenser, therebybeing lost. In other words, this latent heat is not transformed intomechanical work. In order to utilize this latent heat, it may beemployed in evaporating one or another of the volatile fiuids,which maybe inclosed in a multitubular boiler e, through which is led theexhauststeam from the steam-engine. The vapor is led from the volatilefluid to a power-engine h, which may be constructed as an ordinaryheat-engine. The vapor of the fluid is carried from the power-engine toa condenser c and is condensed by means of cooling-water, after whichthe fluid is pumped back to the boiler through the medium of the pump d.As a considerable surface must be provided through which the heatfrom'the exhauststeam may be conveyed to the volatile fluid, aconsiderable quantity of the volatile iiuid is needed, making sucharrangement expensive. It is not necessary, however, to have the boilersfluid-spacefcompletely filled with this comparatively expensive fluid.For the greater part some cheap fluid which does not mix with thevolatile fluid may be usedfor example, Water-above or underneath whichis a layer of the volatile fluid, the position depending on whether thespecific gravity of the fluid is higher or lower than that of the Water.By means of exhaust-steam, for example, the water may be kept at aconstant temperature, and the heat is imparted to the volatile fluid,Vapor generating at the contactsurfaces of the two fluids, the pressureof this vapor being the highest which a mixture of saturated vapors fromthe two fluids with the existing temperature is able to produce. Inorder to make the two fluids surface of contact as large as possible,the volatile fluid deliver-ed from the condenser to the boiler by thefeed-pump may be forced through a rose h, placed in the bottom or theupper part of the boiler, according as the specific gravity of thevolatile lluid is lower or higher than that of the water, and theWater-space of the boiler may at the same time be made deep, so that thedrops of the volatile fluid must pass through a high column of water,thereby attaining completely the temperature of the latter.

Instead of using exhaust-steam for heating the boiler any other methodmay of course be used, and, if desired, the vapor of the volatile fluidmay be superheated before being led to the power-engine.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is

The system of obtaining power from vola tile liquids which consists inheating said liquids in the presence of a non-commingling agency in anextended area, utilizing the resultant Vapor as a source of power,reclaiming the exhaust-vapor, condensing the same, and finallydischarging the condensed fluid into the non-commingling agency forfurther service.

In witness whereof We have hereunto set our hands in presence of twowitnesses.

JULIUS BRUUN. PAUL STRICKER.

Witnesses:

HANs CoLBERe, Gieco BLANY.

